[kbuild-all] [peterz-queue:x86/entry 5/8] include/linux/compiler-gcc.h:153:5: note: in expansion of macro '__has_attribute'

tree: https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git x86/entry head: 8e8bb06d199a5aa7a534aa3b3fc0abbbc11ca438 commit: 5144f8a8dfd7b3681f0a2b5bf599a210b2315018 [5/8] compiler_types.h: Add __no_sanitize_{address,undefined} to noinstr config: i386-randconfig-a006-20200615 (attached as .config) compiler: gcc-4.9 (Ubuntu 4.9.3-13ubuntu2) 4.9.3 reproduce (this is a W=1 build): git checkout 5144f8a8dfd7b3681f0a2b5bf599a210b2315018 # save the attached .config to linux build tree make W=1 ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>, old ones prefixed by <<): In file included from include/linux/compiler_types.h:59:0, from <command-line>:0: # define __has_attribute(x) __GCC4_has_attribute_##x ^ #if __has_attribute(__no_sanitize_undefined__) ^ -- In file included from include/linux/compiler_types.h:59:0, from <command-line>:0: # define __has_attribute(x) __GCC4_has_attribute_##x ^ #if __has_attribute(__no_sanitize_undefined__) ^ drivers/xen/xenbus/xenbus_client.c: In function 'xenbus_va_dev_error': drivers/xen/xenbus/xenbus_client.c:276:2: warning: function might be possible candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format] vsnprintf(printf_buffer + len, PRINTF_BUFFER_SIZE - len, fmt, ap); ^ -- In file included from include/linux/compiler_types.h:59:0, from <command-line>:0: # define __has_attribute(x) __GCC4_has_attribute_##x ^ #if __has_attribute(__no_sanitize_undefined__) ^ lib/math/div64.c:29:32: warning: no previous prototype for '__div64_32' [-Wmissing-prototypes] uint32_t __attribute__((weak)) __div64_32(uint64_t *n, uint32_t base) ^ -- In file included from include/linux/compiler_types.h:59:0, from <command-line>:0: # define __has_attribute(x) __GCC4_has_attribute_##x ^ #if __has_attribute(__no_sanitize_undefined__) ^ drivers/regulator/core.c:3805:5: warning: no previous prototype for 'regulator_suspend_enable' [-Wmissing-prototypes] int regulator_suspend_enable(struct regulator_dev *rdev, ^ drivers/regulator/core.c:3812:5: warning: no previous prototype for 'regulator_suspend_disable' [-Wmissing-prototypes] int regulator_suspend_disable(struct regulator_dev *rdev, ^ drivers/regulator/core.c:3851:5: warning: no previous prototype for 'regulator_set_suspend_voltage' [-Wmissing-prototypes] int regulator_set_suspend_voltage(struct regulator *regulator, int min_uV, ^ -- In file included from include/linux/compiler_types.h:59:0, from <command-line>:0: # define __has_attribute(x) __GCC4_has_attribute_##x ^ #if __has_attribute(__no_sanitize_undefined__) ^ drivers/regulator/da9063-regulator.c:515:3: warning: initialized field overwritten [-Woverride-init] .suspend = BFIELD(DA9063_REG_LDO9_CONT, DA9063_VLDO9_SEL), ^ drivers/regulator/da9063-regulator.c:515:3: warning: (near initialization for 'da9063_regulator_info[11].suspend') [-Woverride-init] -- In file included from include/linux/compiler_types.h:59:0, from <command-line>:0: # define __has_attribute(x) __GCC4_has_attribute_##x ^ #if __has_attribute(__no_sanitize_undefined__) ^ drivers/regulator/tps65218-regulator.c: In function 'tps65218_pmic_set_suspend_enable': drivers/regulator/tps65218-regulator.c:131:10: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits] if (rid < TPS65218_DCDC_1 || rid > TPS65218_LDO_1) ^ drivers/regulator/tps65218-regulator.c: In function 'tps65218_pmic_set_suspend_disable': drivers/regulator/tps65218-regulator.c:144:10: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits] if (rid < TPS65218_DCDC_1 || rid > TPS65218_LDO_1) ^ -- In file included from include/linux/compiler_types.h:59:0, from <command-line>:0: # define __has_attribute(x) __GCC4_has_attribute_##x ^ #if __has_attribute(__no_sanitize_undefined__) ^ arch/x86/lib/cmdline.c:204:5: warning: no previous prototype for 'cmdline_find_option_bool' [-Wmissing-prototypes] int cmdline_find_option_bool(const char *cmdline, const char *option) ^ arch/x86/lib/cmdline.c:209:5: warning: no previous prototype for 'cmdline_find_option' [-Wmissing-prototypes] int cmdline_find_option(const char *cmdline, const char *option, char *buffer, ^ -- In file included from include/linux/compiler_types.h:59:0, from <command-line>:0: # define __has_attribute(x) __GCC4_has_attribute_##x ^ #if __has_attribute(__no_sanitize_undefined__) ^ arch/x86/lib/misc.c:7:5: warning: no previous prototype for 'num_digits' [-Wmissing-prototypes] int num_digits(int val) ^ -- In file included from include/linux/compiler_types.h:59:0, from <command-line>:0: # define __has_attribute(x) __GCC4_has_attribute_##x ^ #if __has_attribute(__no_sanitize_undefined__) ^ arch/x86/lib/msr.c:39:5: warning: no previous prototype for 'msr_read' [-Wmissing-prototypes] int msr_read(u32 msr, struct msr *m) ^ arch/x86/lib/msr.c:57:5: warning: no previous prototype for 'msr_write' [-Wmissing-prototypes] int msr_write(u32 msr, struct msr *m) ^ -- In file included from include/linux/compiler_types.h:59:0, from <command-line>:0: # define __has_attribute(x) __GCC4_has_attribute_##x ^ #if __has_attribute(__no_sanitize_undefined__) ^ fs/ext4/super.c: In function 'ext4_remount': fs/ext4/super.c:5384:6: warning: variable 'enable_quota' set but not used [-Wunused-but-set-variable] int enable_quota = 0; ^ -- In file included from include/linux/compiler_types.h:59:0, from <command-line>:0: # define __has_attribute(x) __GCC4_has_attribute_##x ^ #if __has_attribute(__no_sanitize_undefined__) ^ drivers/tty/tty_ldisc.c:884:6: warning: no previous prototype for 'tty_sysctl_init' [-Wmissing-prototypes] void tty_sysctl_init(void) ^ .. vim +/__has_attribute +153 include/linux/compiler-gcc.h 152 154 #define __no_sanitize_undefined __attribute__((no_sanitize_undefined)) 155 #else 156 #define __no_sanitize_undefined 157 #endif 158 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org